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Engine-Codes – Generic – B1623

B1623 Code - Lamp Keypad Output Circuit Failure

Quick Answer

The B1623 diagnostic trouble code indicates a Lamp Keypad Output Circuit Failure. Common causes include Faulty wiring or connectors in the keypad circuit, Defective keypad control module, Water or moisture damage to the keypad circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B1623 indicates Lamp Keypad Output Circuit Failure.
Common causes
Common causes include Faulty wiring or connectors in the keypad circuit, Defective keypad control module, Water or moisture damage to the keypad circuit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code B1623 Description

The B1623 diagnostic trouble code indicates a Lamp Keypad Output Circuit Failure. This code is typically associated with an issue in the circuitry responsible for controlling the keypad lighting in the vehicle. The keypad lighting is essential for visibility and ease of use, especially in low-light conditions. When this circuit fails, it can result in the keypad lighting not functioning properly or not illuminating at all.

OBDII Code B1623 - Lamp Keypad Output Circuit Failure
B1623 Code - Lamp Keypad Output Circuit Failure

Common Causes of B1623

  1. Faulty wiring or connectors in the keypad circuit
  2. Defective keypad control module
  3. Water or moisture damage to the keypad circuit
  4. Short circuits in the keypad circuit
  5. Electrical system malfunctions

Symptoms of B1623

  1. Keypad lighting not working
  2. Dim or flickering keypad lighting
  3. Inconsistent keypad lighting behavior
  4. Difficulty in reading keypad controls
  5. Error messages related to keypad circuit

How to Fix B1623

  1. Diagnose the issue by checking the wiring, connectors, and control module in the keypad circuit.
  2. Repair or replace any damaged wiring or connectors.
  3. Test the keypad control module and replace if necessary.
  4. Inspect for any water or moisture damage and address accordingly.
  5. Clear the trouble code and test the keypad lighting functionality.

Cost to Fix B1623

The typical repair costs for addressing a Lamp Keypad Output Circuit Failure can range from $100 to $300, depending on the extent of the issue and the specific components that need to be repaired or replaced. Additional costs may apply if other electrical system repairs are needed. It's important to note that labor rates can vary, so it's advisable to check with local auto repair shops for more accurate pricing information.

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Code B1623 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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